Fluval Accent Renewal Kit for Aquarium 2-month supply of Fluvial Biological Enhancer; Fluvial Water Conditioner; and Fluvial Fresh & Clear Filter Cartridge Fresh & Clear Filter Cartridge removes particles, toxins, odors and discoloration Fluvial Water Conditioner removes chlorine & chloramines, neutralizes metal toxins Fluvial Biological Enhancer eliminates ammonia & nitrate Makes maintenance fast, easy and simple